IT1163306B - Procedure and device for the checking of emergency lighting intervention, on the basis of variations in environmental illumination. - Google Patents

Procedure and device for the checking of emergency lighting intervention, on the basis of variations in environmental illumination.

Info

Publication number
IT1163306B
IT1163306B IT20951/83A IT2095183A IT1163306B IT 1163306 B IT1163306 B IT 1163306B IT 20951/83 A IT20951/83 A IT 20951/83A IT 2095183 A IT2095183 A IT 2095183A IT 1163306 B IT1163306 B IT 1163306B
Authority
IT
Italy
Prior art keywords
checking
variations
procedure
environmental
emergency lighting
Prior art date
Application number
IT20951/83A
Other languages
Italian (it)
Other versions
IT8320951A0 (en
IT8320951A1 (en
Inventor
Luigi Mariotti
Original Assignee
Velamp Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Velamp Spa filed Critical Velamp Spa
Priority to IT20951/83A priority Critical patent/IT1163306B/en
Publication of IT8320951A0 publication Critical patent/IT8320951A0/en
Publication of IT8320951A1 publication Critical patent/IT8320951A1/en
Application granted granted Critical
Publication of IT1163306B publication Critical patent/IT1163306B/en

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  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

This invention refers to a procedure and related devices according to which, the luminous intensity of the environment, or of the zone where the emergency illumination device must intervene, is sensed by an electrical-optical device, which by means of a device capable of transducing in time, the variations of the parameters relative to the luminous intensity sensed, sends a suitably elaborated signal to the entrance of a device capable of memorizing the environmental light situation and checking the presence or absence of network power supply, so as to thus emit an activation signal of the emergency lighting device, only when the environmental luminosity is below a certain threshold, and a diminution in environmental lighting is verified within a predetermined time interval.
IT20951/83A 1983-05-05 1983-05-05 Procedure and device for the checking of emergency lighting intervention, on the basis of variations in environmental illumination. IT1163306B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT20951/83A IT1163306B (en) 1983-05-05 1983-05-05 Procedure and device for the checking of emergency lighting intervention, on the basis of variations in environmental illumination.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT20951/83A IT1163306B (en) 1983-05-05 1983-05-05 Procedure and device for the checking of emergency lighting intervention, on the basis of variations in environmental illumination.

Publications (3)

Publication Number Publication Date
IT8320951A0 IT8320951A0 (en) 1983-05-05
IT8320951A1 IT8320951A1 (en) 1984-11-05
IT1163306B true IT1163306B (en) 1987-04-08

Family

ID=11174515

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20951/83A IT1163306B (en) 1983-05-05 1983-05-05 Procedure and device for the checking of emergency lighting intervention, on the basis of variations in environmental illumination.

Country Status (1)

Country Link
IT (1) IT1163306B (en)

Also Published As

Publication number Publication date
IT8320951A0 (en) 1983-05-05
IT8320951A1 (en) 1984-11-05

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